Affordable After-market HR Y-Pipes FOUND
#23
#24
The HR y-pipe has ~2.2" ID runners and a ~2.45" outlet. This matches up perfectly with the OEM cats and the midpipe. The HR y-pipe shows no loss in power in the lower rpms and shows a gain of around 6-7whp in the mid to upper rpm range.
As for a change in gearing with the HR y-pipe, what I noticed in slightly firmer shifting and overall slightly more responsive shifting auto. The HR y-pipe also seems to give the 5AT a little more initial torque right off idle. I can't verify any of this, but many other HR y-pipe owners report similiar findings.
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CandlestickPark (06-09-2011)
#26
I don’t think it’s overkill at all, considering all single path exhaust setups for our car run 3” piping. It’s not meant to be the “end all, be all.” It’s an after-market option designed to finish off an after-market setup. Really a great option for those hella expensive JDM y-pipe back setups. This pipe is more that a “healthy medium” between the MD-XYZ and the OEM 350Z-HR.
#27
Red Card Crew
iTrader: (24)
Hydrazine is an advocate of the bigger pipe. I think mentions that once the Y is merged the outlet dia doesn't make that much diff unless it was too small.
For reference, the Stillen dual has 2.5" pipes. The Borla dual has 2.25" pipes.
I think this is a decent unit for $165. If one is that concerned about the 3" outlet, you can always weld a 3" to 2.5" reducer cone if you want to run a 2.5" single out to the back.
For reference, the Stillen dual has 2.5" pipes. The Borla dual has 2.25" pipes.
I think this is a decent unit for $165. If one is that concerned about the 3" outlet, you can always weld a 3" to 2.5" reducer cone if you want to run a 2.5" single out to the back.